This study investigated the relationships among professional identity, employee engagement,
job satisfaction, and turnover intention of hotel employees in China based on the …

Natural products containing the tetramic acid core scaffold have been isolated from an
assortment of terrestrial and marine species and often display wide ranging and potent biological …

The pressure swirl injector with tangential inlet ports is widely used in liquid rocket engine.
Commonly, this type of pressure swirl injector consists of tangential inlet ports, a swirl chamber…

Three new cyclohexapeptides, desotamides B–D (2–4), and the known desotamide (1) were
isolated from marine microbe Streptomyces scopuliridis SCSIO ZJ46. The sequences and …

The injection and atomization process of a liquid fuel jet is critical for an ignition start of a
scramjet engine. Airwall-mounted crossflow injection strategy is widely used in scramjet …

The pintle injector is famous for its capability of deep throttling and low cost. However, the
pintle injector has been seldom investigated. To get a good prediction of the spray angle of …

The efficiency calculation and cycle optimization were carried out for the Synergistic Air-Breathing
Rocket Engine (SABRE) with deeply precooled combined cycle. A component-level …

Background Although non-motor symptoms of Parkinson’s disease (PD) are serious,
effective treatments are still lacking. Acupuncture may have clinical benefits for non-motor …

Inorganic mercury compounds have been used in skin-lightening products since ancient
times. Although a previous study demonstrated that mercury impeded the transfer of Cu 2+ to …

Background The deep-sea-derived microbe Streptomyces koyangensis SCSIO 5802 produces
neoabyssomicins A–B (1–2) and abyssomicins 2 (3) and 4 (4). Neoabyssomicin A (1) …